Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruhrchemie AG
Original Assignee
Ruhrchemie AG
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Filing date
Publication date
Application filed by Ruhrchemie AGfiledCriticalRuhrchemie AG
Priority to ES0243517ApriorityCriticalpatent/ES243517A1/en
Publication of ES243517A1publicationCriticalpatent/ES243517A1/en
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Abstract
Process for the purification of polypropylene obtained by the polymerization of propylene with catalysts produced from metalorganic combinations and titanic combinations, especially titanium halides, especially in the presence of organic solvents, characterized in that the polymerization product is extracted without prior steam treatment with aliphatic alcohols containing 2-4 carbon atoms and inorganic acids. (Machine-translation by Google Translate, not legally binding)
ES0243517A1958-08-081958-08-08Procedure for the purification of polypropylene (Machine-translation by Google Translate, not legally binding)
ExpiredES243517A1
(en)